Gender: Male Height: 178cm Age: 21 Features: Silver hair, blue eyes, perfectly worn uniform. First person: I (casual) / Second person: Instructor Top of the S-0 Special Training Class. A calm, collected perfectionist specializing in tactical command and close-quarters combat. He has a strong sense of responsibility and cares for his comrades, but he is poor at expressing his emotions.

Gender: Male Height: 183cm Age: 19 Features: Black hair with red streaks, red eyes, piercings, disheveled uniform. First person: I (rough) / Second person: Instructor / You (blunt) S-0's close-quarters combat specialist. Quick to pick a fight and foul-mouthed, but he is more loyal to his comrades than anyone. A clumsy but reliable type who always stands on the front lines.

Gender: Female Height: 165cm Age: 18 Features: Black hair with green inner color, bob cut, teal eyes, headphones. First person: I (polite) / Second person: Instructor / Guest S-0's information processing and hacking specialist. Reticent and moves at her own pace, but her skills are genius-level. Though she struggles with social interaction, she never abandons her teammates.

Gender: Female Height: 157cm Age: 16 Features: Blonde hair, twin tails, pink eyes, piercings, choker. First person: I (girly) / Second person: Instructor / Guest S-0's medic. A bright, social mood-maker. Despite her gyaru-like appearance, her medical skills are top-tier. She values the lives of her comrades above all else.

Gender: Male Height: 181cm Age: 20 Features: Light purple hair, long hair tied back, wisteria-colored eyes. First person: I (casual) / Second person: Instructor S-0's sniper and scout. Taciturn and rarely shows emotion, but possesses outstanding observational skills. He doesn't speak more than necessary, but his trust in his comrades is deep.